4th International Conference on Nanotek & Expo

High-temperature resistant coatings represent an important potential research due to their applications in (turbines,
engines, aeronautic, etc). Ceramic coatings are effective, economic method of protecting metals and ceramic compounds
in severe environments. Refractory paints based on silicon carbide (SiC) along with alkali inorganic binders were investigated
by applying different mixtures of β-SiC. The alkali activator used in this work was an aqueous solution of NaOH/Na2SiO3.
Matakaolin was used as a raw material of alumina silicate. 5 samples with different proportions of β-SiC particle sizes were
prepared to form the Bimodal β-SiC. The samples were 100% micron, 70% micron, 30% nano, 50% micron, 0% nano, 30%
micron, 70% nano and 100% nano. The samples were applied on super alloy Nickel-based (Inconel 738) then cured at 800C for
24 hours. Following that, the thermal treatment, analyses have been done. Analyses like adhesion test and pin on disk tests were
also performed. The results of the adhesion test showed maximum grade of adhesion for all samples. To study the corrosion
behavior, Salt Spray test was done; the results of this test revealed high corrosion resistance for all samples after 500 hours of
exposure. In general, by increasing the Nano- β-SiC portion of the samples, better corrosion and abrasion resistance resulted.

Biography

Ayda Khosravanihaghighi has completed her MSc in Material Science and Engineering from Shiraz University and Bachelor degree in Chemical Engineering from
Azad University School of Engineering. She is assisting different related studies in laboratory of university. She is interested in research studies and published
some papers in reputed journals and also received the best oral presenter in 2013 at the 3rd International Conference on Advanced Materials Research. She is a
member of Nano Society of Iran.